Finding the Fourth Proportional to 3,438,915.20, 5,146,125.60 and 2,994,516.80
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Solution
The fourth proportional to 3,438,915.20, 5,146,125.60 and 2,994,516.80 is: 4,481,110.66
Step by Step Solution
- Step 1: Write the proportion equation
3,438,915.20 : 5,146,125.60 = 2,994,516.80 : x - Step 2: Convert to fraction form
3,438,915.20/5,146,125.60 = 2,994,516.80/x - Step 3: Cross multiply
3,438,915.20x = 5,146,125.60 × 2,994,516.80 - Step 4: Simplify right side
3,438,915.20x = 15,410,159,564,110.08 - Step 5: Solve for x
x = 15,410,159,564,110.08/3,438,915.20 - Step 6: Final answer
x = 4,481,110.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.